Compact and Scalable Large Vortex Array Generation Using Azocarbazole Polymer and Digital Hologram Printing Technique

Boaz Jessie Jackin; Masaki Shirai; Honoka Haginaka; Kenji Kinashi; Naoto Tsutsumi; Wataru Sakai

doi:10.1186/s11671-022-03675-7

Compact and Scalable Large Vortex Array Generation Using Azocarbazole Polymer and Digital Hologram Printing Technique

Nanoscale Res Lett. 2022 Apr 5;17(1):44. doi: 10.1186/s11671-022-03675-7.

Authors

Boaz Jessie Jackin¹, Masaki Shirai², Honoka Haginaka³, Kenji Kinashi⁴, Naoto Tsutsumi⁵, Wataru Sakai⁵

Affiliations

¹ Materials Innovation Laboratory, Kyoto Institute of Technology, Kyoto, Japan. jackin@kit.ac.jp.
² Master's Programs of Materials Chemistry, Kyoto Institute of Technology, Kyoto, Japan.
³ Bachelor's Program of Materials Chemistry, Kyoto Institute of Technology, Kyoto, Japan.
⁴ Faculty of Materials Science and Engineering, Kyoto Institute of Technology, Kyoto, Japan. kinashi@kit.ac.jp.
⁵ Faculty of Materials Science and Engineering, Kyoto Institute of Technology, Kyoto, Japan.

Abstract

An integrated device capable of generating large number of multiplexed optical vortex beams with arbitrary topological charge is considered as one of the crucial requirement for driving information photonics forward. Here we report a simple method for simultaneous generation of 100 multiplexed optical vortex beams from a polymer film of size 1 mm² and thickness of 30 μm. This is achieved through a combination of computer-generated holography, digital hologram printing and photoisomeric polymers. When the fabricated sample is illuminated with a collimated laser beam, a pre-determined vortex array with arbitrary topological charge is emitted. The polymer film easy to synthesize and exhibits a diffraction efficiency of 30% with a retention period longer than 50 days.

Keywords: Computer-generated holography; Hologram printing; Optical integrated device; Optical vortex; Photoinduced birefringence.